DOOR _____L MID CABIN
Proximity Switch Control Unit. (PSCU)
— RESET PROCEDURE—
- Check proximity sensor and target.
- Perform system test of PSCU on the MCDU (ATA 52).
MEL STATUS: MEL 52-71-01-B


DOOR _____L MID CABIN
Proximity Switch Control Unit. (PSCU)
— RESET PROCEDURE—
MEL STATUS: MEL 52-71-01-B

All instructions and limitations given in those documents that relate to the resetting of systems both on the ground and in the air must be respected. No reset should be attempted without a thorough appreciation of the technical ramifications. No more than one computer should be reset at any one time. No reset should be attempted in flight unless specifically permitted by the QRH. Maintenance messages remaining after a reset require engineering investigation.






